Harley-Davidson/AMSOIL Oil Chart
AMSOIL Synthetic 10W-40 Motorcycle Oil (MCF) is a premium oil designed for those
who demand the absolute best lubrication for their motorcycles. AMSOIL MCF is the
result of extensive research, and it is specially formulated to excel in all areas
unique to motorcycles, including high engine RPM, wet clutch lubrication, extreme
pressure regions of gears and rust common to short drives and storage.
AMSOIL MCF is multi-functional and fulfills the requirements of both
domestic and foreign motorcycles. It outperforms other conventional and synthetic
AMSOIL, the leader in synthetic lubrication, produced the world's first
API qualified synthetic motor oil in 1972. Trust the extensive experience of AMSOIL
The First in Synthetics® to do the best job protecting your motorcycle.
Reduces Friction, Heat and Wear
In high heat conditions, engine protection is not sacrificed with AMSOIL Synthetic
Motorcycle Oil. It has the best high temperature film strength (see High Temperature
Viscosity Protection graph below) of all oils tested and contains a heavy treatment
of anti-wear additives to reduce wear regardless of the operating conditions (see
Wear Comparison graph at right). AMSOIL 10W-40 Motorcycle Oil is thermally (heat)
stable and contains maximum levels of oxidation inhibitor additives. It is extremely
resistant to breakdown and engineered to prevent damaging sludge and carbon deposits
for superior engine cleanliness.
Provides Extreme Pressure Quality Protection for Gears
With AMSOIL Synthetic Motorcycle Oil, there is no need for separate transmission
lubricants. It is absolutely shear stable and will not thin out from mechanical
activity. AMSOIL MCF performs like a gear lube without the negative effects of extreme
pressure additives. In the FZG gear test, AMSOIL MCF achieved a perfect score with
a zero wear rating (see photo below).
Delivers Superior Rust Protection
Motorcycles are prone to rust from storage, humidity and short drives. Rust can
cause major damage such as uncontrolled wear, compression loss and blow-by. Good
rust protection, however, comes by design and is not natural to engine oils. Unlike
many motorcycle oils, AMSOIL MCF contains special anti-rust agents. It passes the
ASTM D-1748 humidity cabinet rust test and clearly demonstrates superior rust protection
(see photos below).
Provides Excellent Wet Clutch Performance
AMSOIL Synthetic 10W-40 Motorcycle Oil contains no friction modifiers and promotes
smooth shifting and positive clutch engagement. AMSOIL MCF controls heat and prevents
slippage and glazing, helping improve clutch life. AMSOIL Synthetic 10W-40 Motorcycle
Oil meets the wet clutch frictional requirements of JASO Standard T903: 2006, MA/MA2
and ISO-L-EMA2 of ISO Standard 24254:2007.
AMSOIL Synthetic 10W-40 Motorcycle Oil is recommended for liquid or air-cooled 4-stroke
engines. It meets SAE 80W/90, API GL-1 gear oil requirements and is recommended
for transmissions on both 4- and 2-stroke motorcycles. AMSOIL MCF is recommended
for Honda®, Kawasaki®, Yamaha®, Suzuki®, BMW®, Husqvarna®, Victory® and other motorcycles
where 10W-40 or 20W-40 engine oils or SAE 80W/90, GL-1 gear oils are used. Not recommended
where an API GL-4 or GL-5 gear oil is required.
AMSOIL Synthetic 10W-40 Motorcycle Oil is compatible with conventional and synthetic
however, mixing oils may shorten the oil life expectancy and reduce the performance
benefits. AMSOIL does not support extended drain intervals where oils have been
Aftermarket oil additives are not recommended for use with AMSOIL motorcycle
For on-road use in engines and transmissions, change AMSOIL MCF and AMSOIL engine
oil filter at twice the motorcycle manufacturer change interval or one year, whichever
comes first. Change other brand oil filters at standard intervals.
For off-road use in engines and transmissions, change AMSOIL MCF at
the standard motorcycle manufacturer change interval.
For racing or in engines modified from the original factory design, no
change interval recommendation is made. Oil changes are at the owner’s discretion.
|TYPICAL TECHNICAL PROPERTIES|
|SAE 10W-40 Synthetic Motorcycle Oil (MCF)
Kinematic Viscosity @ 100°C, cSt (ASTM D-445)
Kinematic Viscosity @ 40°C, cSt (ASTM D-445)
Viscosity Index (ASTM D-2270)
Pour Point °C (°F) (ASTM D-97)
Flash Point °C (°F) (ASTM D-92)
High-Temperature/High-Shear Viscosity (ASTM D5481 @ 150°C, 1.0 X 106
Four-Ball Wear Test (ASTM D-4172 @ 40 kgf, 150°C, 1800 rpm, 1 hr),
FZG (ASTM D-5182), Load State Pass (Wear in mm)
13 (0 mm)
Noack Volatility, % weight loss (g/100g) (ASTM D-5800)
Foam (ASTM D-892, Sequence I, II & III)
Shear Stability Kurt Orbahn (ASTM D-6278), % viscosity change 120 cycles
Rust Test - Humidity Cabinet (ASTM D-1748)
No Rust, PASS
Total Base Number